Whelen OmniAlert OA-4 Siren Test | Alert, Airhorn, Hi-Lo | Wilmington, OH | 7/3/21 

3:25 Let's just appreciate the fact that it's swaying to the beat of the Hi-Low. (EDIT: You have to look closely.)

Nice video Kurt!

Hi I’m trying to find what the fire alarm at my school was, It sounded very close to the first one on this video but it was a tiny bit higher in pitch I think but I can’t seem to find it anywhere on RU-vid i’m in the UK don’t know if that makes any difference and it would’ve been in the 1990s when I was at primary school I can’t really give many details because I am visually impaired so all I remember is that one of the sounders I think it was was round thanks

That one you can here doing Hi-Lo for a min is what I just recorded

Nice!

Wow nice